Finding the Fourth Proportional to 115,838.58, 173,441.82 and 87,673.44
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Solution
The fourth proportional to 115,838.58, 173,441.82 and 87,673.44 is: 131,270.95
Step by Step Solution
- Step 1: Write the proportion equation
115,838.58 : 173,441.82 = 87,673.44 : x - Step 2: Convert to fraction form
115,838.58/173,441.82 = 87,673.44/x - Step 3: Cross multiply
115,838.58x = 173,441.82 × 87,673.44 - Step 4: Simplify right side
115,838.58x = 15,206,240,999.26 - Step 5: Solve for x
x = 15,206,240,999.26/115,838.58 - Step 6: Final answer
x = 131,270.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.